Record Information |
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Version | 5.0 |
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Status | Detected and Quantified |
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Creation Date | 2007-05-22 19:11:00 UTC |
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Update Date | 2022-03-07 02:49:30 UTC |
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HMDB ID | HMDB0006245 |
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Secondary Accession Numbers | - HMDB0011642
- HMDB06245
- HMDB11642
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Metabolite Identification |
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Common Name | 18-Hydroxyarachidonic acid |
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Description | (18R)-Hydroxyarachidonate is a substrate for CYP4F8 or leukotriene-B4 20-monooxygenase (EC 1.14.13.30). This enzyme hydroxylates arachdonic acid (20:4n-6) to (18R)-hydroxyarachidonate in the endoplasmic reticulum. This reaction is irreversible. CYP4F8 is a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. This protein localizes to the endoplasmic reticulum and functions as a 19-hydroxylase of prostaglandins in seminal vesicles. In particular, CYP4F8 catalyzes the 2-hydroxylation of PGH1 and PGH2, which will lead to biosynthesis of the two main PGs of human seminal fluid, (19R)-hydroxy-PGE1 and (19R)-hydroxy-PGE2 (PMID: 10791960 ). 18-Hydroxyarachidonic acid is an intermediate in eicosanoid metabolism. |
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Structure | CC[C@@H](O)CC\C=C/C\C=C/C\C=C/C\C=C/CCCC(O)=O InChI=1S/C20H32O3/c1-2-19(21)17-15-13-11-9-7-5-3-4-6-8-10-12-14-16-18-20(22)23/h4-7,10-13,19,21H,2-3,8-9,14-18H2,1H3,(H,22,23)/b6-4-,7-5-,12-10-,13-11-/t19-/m1/s1 |
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Synonyms | Value | Source |
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(18R)-HETE | ChEBI | (5Z,8Z,11Z,14Z,18R)-18-Hydroxyicosatetraenoic acid | ChEBI | 18(R)-Hydroxyeicosatetraenoic acid | ChEBI | Hydroxyarachidonic acid | ChEBI | (5Z,8Z,11Z,14Z,18R)-18-Hydroxyicosatetraenoate | Generator | 18(R)-Hydroxyeicosatetraenoate | Generator | Hydroxyarachidonate | Generator | 18-Hydroxyarachidonate | Generator | (18R)-Hydroxyarachidonate | HMDB | (18R)-Hydroxyarachidonic acid | HMDB | 18-HETE | HMDB | 18-Hydroxyeicosatetraenoate | HMDB | 18-Hydroxyeicosatetraenoic acid | HMDB | Omega-hydroxyarachidonic acid | HMDB | W-Hydroxyarachidonic acid | HMDB | 18-Hydroxy-5,8,11,14-eicosatetraenoic acid | HMDB | 18-Hydroxy-arachidonate | HMDB |
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Chemical Formula | C20H32O3 |
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Average Molecular Weight | 320.4663 |
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Monoisotopic Molecular Weight | 320.23514489 |
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IUPAC Name | (5Z,8Z,11Z,14Z,18R)-18-hydroxyicosa-5,8,11,14-tetraenoic acid |
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Traditional Name | 18-hydroxy-arachidonic acid |
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CAS Registry Number | 124411-81-0 |
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SMILES | CC[C@@H](O)CC\C=C/C\C=C/C\C=C/C\C=C/CCCC(O)=O |
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InChI Identifier | InChI=1S/C20H32O3/c1-2-19(21)17-15-13-11-9-7-5-3-4-6-8-10-12-14-16-18-20(22)23/h4-7,10-13,19,21H,2-3,8-9,14-18H2,1H3,(H,22,23)/b6-4-,7-5-,12-10-,13-11-/t19-/m1/s1 |
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InChI Key | PPCHNRUZQWLEMF-LFFPGIGVSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as hydroxyeicosatetraenoic acids. These are eicosanoic acids with an attached hydroxyl group and four CC double bonds. |
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Kingdom | Organic compounds |
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Super Class | Lipids and lipid-like molecules |
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Class | Fatty Acyls |
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Sub Class | Eicosanoids |
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Direct Parent | Hydroxyeicosatetraenoic acids |
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Alternative Parents | |
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Substituents | - Hydroxyeicosatetraenoic acid
- Long-chain fatty acid
- Hydroxy fatty acid
- Fatty acid
- Unsaturated fatty acid
- Secondary alcohol
- Carboxylic acid derivative
- Carboxylic acid
- Monocarboxylic acid or derivatives
- Organic oxide
- Organic oxygen compound
- Alcohol
- Hydrocarbon derivative
- Carbonyl group
- Organooxygen compound
- Aliphatic acyclic compound
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Molecular Framework | Aliphatic acyclic compounds |
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External Descriptors | |
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Ontology |
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Physiological effect | Not Available |
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Disposition | |
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Process | Not Available |
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Role | Not Available |
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Physical Properties |
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State | Solid |
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Experimental Molecular Properties | Property | Value | Reference |
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Melting Point | Not Available | Not Available | Boiling Point | Not Available | Not Available | Water Solubility | Not Available | Not Available | LogP | Not Available | Not Available |
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Experimental Chromatographic Properties | Not Available |
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Predicted Molecular Properties | |
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Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Retention Times UnderivatizedChromatographic Method | Retention Time | Reference |
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Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022. | 6.97 minutes | 32390414 | Predicted by Siyang on May 30, 2022 | 20.5264 minutes | 33406817 | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.0 minutes | 32390414 | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 33.6 seconds | 40023050 | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 3038.2 seconds | 40023050 | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 381.2 seconds | 40023050 | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 192.3 seconds | 40023050 | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 266.2 seconds | 40023050 | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 592.9 seconds | 40023050 | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 1008.7 seconds | 40023050 | BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 544.6 seconds | 40023050 | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 105.4 seconds | 40023050 | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1910.2 seconds | 40023050 | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 692.0 seconds | 40023050 | UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 1736.6 seconds | 40023050 | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 669.3 seconds | 40023050 | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 479.3 seconds | 40023050 | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 388.6 seconds | 40023050 | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 436.7 seconds | 40023050 | Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 8.7 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatizedDerivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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18-Hydroxyarachidonic acid,1TMS,isomer #1 | CC[C@H](CC/C=C\C/C=C\C/C=C\C/C=C\CCCC(=O)O)O[Si](C)(C)C | 2711.8 | Semi standard non polar | 33892256 | 18-Hydroxyarachidonic acid,1TMS,isomer #2 | CC[C@@H](O)CC/C=C\C/C=C\C/C=C\C/C=C\CCCC(=O)O[Si](C)(C)C | 2587.1 | Semi standard non polar | 33892256 | 18-Hydroxyarachidonic acid,2TMS,isomer #1 | CC[C@H](CC/C=C\C/C=C\C/C=C\C/C=C\CCCC(=O)O[Si](C)(C)C)O[Si](C)(C)C | 2624.6 | Semi standard non polar | 33892256 | 18-Hydroxyarachidonic acid,1TBDMS,isomer #1 | CC[C@H](CC/C=C\C/C=C\C/C=C\C/C=C\CCCC(=O)O)O[Si](C)(C)C(C)(C)C | 2958.8 | Semi standard non polar | 33892256 | 18-Hydroxyarachidonic acid,1TBDMS,isomer #2 | CC[C@@H](O)CC/C=C\C/C=C\C/C=C\C/C=C\CCCC(=O)O[Si](C)(C)C(C)(C)C | 2833.5 | Semi standard non polar | 33892256 | 18-Hydroxyarachidonic acid,2TBDMS,isomer #1 | CC[C@H](CC/C=C\C/C=C\C/C=C\C/C=C\CCCC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 3112.9 | Semi standard non polar | 33892256 |
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| GC-MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted GC-MS | Predicted GC-MS Spectrum - 18-Hydroxyarachidonic acid GC-MS (Non-derivatized) - 70eV, Positive | splash10-0f6y-7291000000-16728ad8bd8ebb944fe2 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - 18-Hydroxyarachidonic acid GC-MS (2 TMS) - 70eV, Positive | splash10-009i-9436500000-0c21440f1fd79ba11984 | 2017-10-06 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - 18-Hydroxyarachidonic acid GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum |
MS/MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 18-Hydroxyarachidonic acid 10V, Positive-QTOF | splash10-0udi-0059000000-a75bea5dd5332be1a84f | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 18-Hydroxyarachidonic acid 20V, Positive-QTOF | splash10-0udr-1292000000-ef55afde193cfcd01538 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 18-Hydroxyarachidonic acid 40V, Positive-QTOF | splash10-1000-8790000000-0eab084330a82cf88226 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 18-Hydroxyarachidonic acid 10V, Negative-QTOF | splash10-014i-0019000000-710912287685513d0e07 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 18-Hydroxyarachidonic acid 20V, Negative-QTOF | splash10-0uxr-1059000000-ad675311c547d18f97bb | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 18-Hydroxyarachidonic acid 40V, Negative-QTOF | splash10-0a4l-9030000000-a7c5a41adbeb99e30dbc | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 18-Hydroxyarachidonic acid 10V, Positive-QTOF | splash10-0uk9-1339000000-0392a1ab82d4e70b35db | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 18-Hydroxyarachidonic acid 20V, Positive-QTOF | splash10-0fri-4953000000-34622f97ba9d1fd54e9b | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 18-Hydroxyarachidonic acid 40V, Positive-QTOF | splash10-015c-9600000000-7cde68db4ec7173c6177 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 18-Hydroxyarachidonic acid 10V, Negative-QTOF | splash10-014i-0009000000-777fdb814292c66079c9 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 18-Hydroxyarachidonic acid 20V, Negative-QTOF | splash10-0gb9-3059000000-c59628baf2569d14b3c3 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 18-Hydroxyarachidonic acid 40V, Negative-QTOF | splash10-0a4l-9020000000-d11651945eb0a6c4f27d | 2021-09-22 | Wishart Lab | View Spectrum |
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Synthesis Reference | Romanov, Stepan G.; Ivanov, Igor V.; Groza, Nataliya V.; Kuhn, Hartmut; Myagkova, Galina I. Total synthesis of (5Z,8Z,11Z,14Z)-18- and 19-oxoeicosa-5,8,11,14-tetraenoic acids. Tetrahedron (2002), 58(42), 8483-8487. |
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